Improving Concurrent Object Interactions Using Aspect Orientation

摘要

For software systems such as operating systems, the interaction of their components becomes more complex. This interaction may limit reusability, adaptability, and make it difficult to validate the design and correctness of the system. As a result, re-engineering of these systems might be inevitable to meet future requirements. Supporting separation of concerns in the design and implementation of operating systems can provide a number of benefits such as comprehension, reusability, extensibility and adaptability in both design and implementation. However, in order to maximize these benefits, such a support is difficult to accomplish. System aspectual properties define as crosscutting concerns of many components of the system. Examples of system aspectual properties are synchronization, scheduling, performance, fault tolerance and etc. Aspect-Oriented Programming is a paradigm proposal that aims at separating components and aspects from the early stages of the software life cycle, and combines them together at the implementation phase. In this paper we demonstrate an Aspect-Oriented Framework (CAL) that can be used for system software such as operating systems. We also show how the separation of system aspectual properties from components. Producers/Consumers problem is demonstrated using our framework. Our framework, which is based on aspect-oriented technology as well as language and architecture independence, is a three-dimensional model consists of aspects, components, and layers.